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author | Florian Dold <florian.dold@gmail.com> | 2017-08-14 05:01:11 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2017-08-14 05:02:09 +0200 |
commit | 363723fc84f7b8477592e0105aeb331ec9a017af (patch) | |
tree | 29f92724f34131bac64d6a318dd7e30612e631c7 /node_modules/react/lib/ReactBaseClasses.js | |
parent | 5634e77ad96bfe1818f6b6ee70b7379652e5487f (diff) |
node_modules
Diffstat (limited to 'node_modules/react/lib/ReactBaseClasses.js')
-rw-r--r-- | node_modules/react/lib/ReactBaseClasses.js | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/node_modules/react/lib/ReactBaseClasses.js b/node_modules/react/lib/ReactBaseClasses.js new file mode 100644 index 000000000..e45e192a8 --- /dev/null +++ b/node_modules/react/lib/ReactBaseClasses.js @@ -0,0 +1,142 @@ +/** + * Copyright 2013-present, Facebook, Inc. + * All rights reserved. + * + * This source code is licensed under the BSD-style license found in the + * LICENSE file in the root directory of this source tree. An additional grant + * of patent rights can be found in the PATENTS file in the same directory. + * + */ + +'use strict'; + +var _prodInvariant = require('./reactProdInvariant'), + _assign = require('object-assign'); + +var ReactNoopUpdateQueue = require('./ReactNoopUpdateQueue'); + +var canDefineProperty = require('./canDefineProperty'); +var emptyObject = require('fbjs/lib/emptyObject'); +var invariant = require('fbjs/lib/invariant'); +var lowPriorityWarning = require('./lowPriorityWarning'); + +/** + * Base class helpers for the updating state of a component. + */ +function ReactComponent(props, context, updater) { + this.props = props; + this.context = context; + this.refs = emptyObject; + // We initialize the default updater but the real one gets injected by the + // renderer. + this.updater = updater || ReactNoopUpdateQueue; +} + +ReactComponent.prototype.isReactComponent = {}; + +/** + * Sets a subset of the state. Always use this to mutate + * state. You should treat `this.state` as immutable. + * + * There is no guarantee that `this.state` will be immediately updated, so + * accessing `this.state` after calling this method may return the old value. + * + * There is no guarantee that calls to `setState` will run synchronously, + * as they may eventually be batched together. You can provide an optional + * callback that will be executed when the call to setState is actually + * completed. + * + * When a function is provided to setState, it will be called at some point in + * the future (not synchronously). It will be called with the up to date + * component arguments (state, props, context). These values can be different + * from this.* because your function may be called after receiveProps but before + * shouldComponentUpdate, and this new state, props, and context will not yet be + * assigned to this. + * + * @param {object|function} partialState Next partial state or function to + * produce next partial state to be merged with current state. + * @param {?function} callback Called after state is updated. + * @final + * @protected + */ +ReactComponent.prototype.setState = function (partialState, callback) { + !(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'setState(...): takes an object of state variables to update or a function which returns an object of state variables.') : _prodInvariant('85') : void 0; + this.updater.enqueueSetState(this, partialState); + if (callback) { + this.updater.enqueueCallback(this, callback, 'setState'); + } +}; + +/** + * Forces an update. This should only be invoked when it is known with + * certainty that we are **not** in a DOM transaction. + * + * You may want to call this when you know that some deeper aspect of the + * component's state has changed but `setState` was not called. + * + * This will not invoke `shouldComponentUpdate`, but it will invoke + * `componentWillUpdate` and `componentDidUpdate`. + * + * @param {?function} callback Called after update is complete. + * @final + * @protected + */ +ReactComponent.prototype.forceUpdate = function (callback) { + this.updater.enqueueForceUpdate(this); + if (callback) { + this.updater.enqueueCallback(this, callback, 'forceUpdate'); + } +}; + +/** + * Deprecated APIs. These APIs used to exist on classic React classes but since + * we would like to deprecate them, we're not going to move them over to this + * modern base class. Instead, we define a getter that warns if it's accessed. + */ +if (process.env.NODE_ENV !== 'production') { + var deprecatedAPIs = { + isMounted: ['isMounted', 'Instead, make sure to clean up subscriptions and pending requests in ' + 'componentWillUnmount to prevent memory leaks.'], + replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).'] + }; + var defineDeprecationWarning = function (methodName, info) { + if (canDefineProperty) { + Object.defineProperty(ReactComponent.prototype, methodName, { + get: function () { + lowPriorityWarning(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]); + return undefined; + } + }); + } + }; + for (var fnName in deprecatedAPIs) { + if (deprecatedAPIs.hasOwnProperty(fnName)) { + defineDeprecationWarning(fnName, deprecatedAPIs[fnName]); + } + } +} + +/** + * Base class helpers for the updating state of a component. + */ +function ReactPureComponent(props, context, updater) { + // Duplicated from ReactComponent. + this.props = props; + this.context = context; + this.refs = emptyObject; + // We initialize the default updater but the real one gets injected by the + // renderer. + this.updater = updater || ReactNoopUpdateQueue; +} + +function ComponentDummy() {} +ComponentDummy.prototype = ReactComponent.prototype; +ReactPureComponent.prototype = new ComponentDummy(); +ReactPureComponent.prototype.constructor = ReactPureComponent; +// Avoid an extra prototype jump for these methods. +_assign(ReactPureComponent.prototype, ReactComponent.prototype); +ReactPureComponent.prototype.isPureReactComponent = true; + +module.exports = { + Component: ReactComponent, + PureComponent: ReactPureComponent +};
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